IDL: Enumerations support in dictionaries

LayoutTests/fast/dom/idl-dictionary-unittest-expected.txt

Index: LayoutTests/fast/dom/idl-dictionary-unittest-expected.txt
diff --git a/LayoutTests/fast/dom/idl-dictionary-unittest-expected.txt b/LayoutTests/fast/dom/idl-dictionary-unittest-expected.txt
index eee6c68c3b6e64a99709cb18af0dada99ff6ad6d..02da732d7eeefd7fd33fc9092c682a7b0f0041db 100644
--- a/LayoutTests/fast/dom/idl-dictionary-unittest-expected.txt
+++ b/LayoutTests/fast/dom/idl-dictionary-unittest-expected.txt
@@ -16,6 +16,9 @@ PASS dict.stringSequenceMember is undefined.
 PASS dict.stringSequenceOrNullMember is undefined.
 PASS dict.elementMember is undefined.
 PASS dict.elementOrNullMember is undefined.
+PASS dict.enumMember is undefined.
+PASS dict.enumMemberWithDefault is "foo"
+PASS dict.enumOrNullMember is undefined.
 
 Test for setting undefined
 PASS dict.longMember is undefined.
@@ -44,6 +47,9 @@ PASS dict.stringSequenceMember is ["foo", "bar", "baz"]
 PASS dict.stringSequenceOrNullMember is []
 PASS dict.elementMember is element1
 PASS dict.elementOrNullMember is undefined.
+PASS dict.enumMember is "foo"
+PASS dict.enumMemberWithDefault is "bar"
+PASS dict.enumOrNullMember is "baz"
 
 Test for explicit undefined or null, and missing members
 PASS dict.longMember is undefined.
@@ -54,6 +60,9 @@ PASS dict.longOrNullMemberWithDefault is null
 Test for setting invalid member
 PASS dict.invalidMember is undefined.
 
+Test for setting invalid enum value
+PASS dictionaryTest.set({enumMember: 'invalid'}) threw exception TypeError: Failed to execute 'set' on 'DictionaryTest': member enumMember ('invalid') is not a valid enum value..
+
 PASS successfullyParsed is true
 
 TEST COMPLETE